package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {


    /**
     * 动态查询购物车
     * @param shoppingCart
     * @return
     */
    public List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 修改购物车商品份数
     * @param cart
     */
    @Update("update shopping_cart set number=#{number} where id=#{id}")
    void updateNumberById(ShoppingCart cart);

    /**
     * 新增购物车商品
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (name, image, user_id, dish_id, setmeal_id, dish_flavor, amount, create_time) VALUES " +
            "(#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{amount},#{createTime})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 删除购物车中的一个商品
     * @param shoppingCart
     */
    @Delete("delete from shopping_cart where id=#{id}")
    void deleteById(ShoppingCart shoppingCart);

    /**
     * 清空购物车
     * @param userId
     */
    @Delete("delete from shopping_cart where user_id=#{userId}")
    void deleteByUserId(Long userId);
}
